| Date/Time |
Comments |
| 05/21/2026 04:35 | Keephills 2 online. |
| 05/20/2026 08:51 | The AESO has cancelled Limited Market Operation at 08:51 2026 05 20. Normal market operations and communications have resumed. |
| 05/20/2026 07:59 | This Cory Deydey System Controller from the Alberta Electric System Operator, as of 07:59 on 2026 05 20 Limited Market Operations has been declared due to market tool outage. The AESO will be dispatching from the HE 08 merit order. The SMP as of 07:59 is $21.01. The duration of limited market is unknown at this time. |
| 05/19/2026 13:17 | CAL1 offline. |
| 05/18/2026 11:22 | Cascade 2 online. |
| 05/18/2026 10:20 | Cascade 2 offline. |
| 05/17/2026 16:13 | Supply Surplus is no longer in effect. Restatements to reduce zero-dollar block volumes within the T-2 timeframe are no longer permitted |
| 05/17/2026 16:13 | Supply Surplus is no longer in effect. Restatements to increase export bids or reduce Import offers are no longer permitted within the T-2 timeframe |
| 05/17/2026 15:00 | Battle River 4 Online |
| 05/17/2026 14:01 | Battle River 5 Online |
| 05/17/2026 13:01 | H.R. Milner Online |
| 05/17/2026 08:00 | Supply Surplus in effect; restatements to increase export bids and reduce Import offers are now permitted within the T-2 timeframe |
| 05/17/2026 08:00 | Supply Surplus in effect; restatements to reduce zero-dollar block volume are now permitted within the T-2 timeframe |
| 05/16/2026 00:02 | H.R. Milner Offline |
| 05/15/2026 22:10 | Battle River 4 Offline |
| 05/15/2026 22:06 | H.R. Milner Online |
| 05/15/2026 17:01 | Battle River 4 online. |
| 05/15/2026 14:21 | Cascade 2 Online |
| 05/15/2026 01:16 | Battle River 5 offline. |
| 05/14/2026 23:15 | Battle River 4 offline. |
| 05/14/2026 18:02 | Battle River 5 online |
